i saw him do a house show in 2002 maybe? didn't like it. he was a whiny baby and his songs were loopy and boring. but i've heard he's changed his sound and style since then so my negative review is out of date.
Here's the link I promised It's essentially the same as what Backbacon said but with all the steps laid out. Some of the commands have changed but if you've used iTunes before you'll be able to figure it out. Super easy.
I've done this a dozen times but can't quite remember the exact method. I'll post the link to the method I used after work. Although I'm sure someone will come to your rescue before then.